Isolation of Diterpenoids of the Cladiellane Class from Gorgonians of the Genus Muricella

Six diterpenoids of the cladiellane class have been isolated from two morphologically distinct populations of gorgonians of the genus Muricella. The structures of two novel compounds have been determined by combined spectroscopic methods. These compounds exhibited significant brine shrimp lethality and cytotoxicity.